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Magnetic Resonance Imaging Scans

Magnetic resonance imaging, or MRI, is an advanced method of generating images of the body without the use of X-rays or radiation. This noninvasive procedure uses a magnetic field, radio frequencies and a computer to produce detailed images of the human body. It may be used to monitor an unborn child in the womb.

  • An MRI usually takes 20-50 minutes, and you will need to be prepared to remain still.
  • Weight limit: 350 pounds

Metal and electronic items (e.g. jewelry, hearing aids, cell phones) are not allowed in the exam room because they can interfere with the magnetic field, cause burns or become harmful projectiles.

Preparing for a magnetic resonance imaging (MRI)

  • If you have metal-containing objects or implanted medical devices in your body, please inform us prior to your MRI scan.
  • Some MRIs may require an injection of dye into a vein to give the radiologist more information about vascular structures in the body. If an IV dye is necessary for your exam, drink extra fluids for 48 hours following your exam to help flush the dye out of your body.
  • If you are having an MRI of your head, do not wear any eye makeup.
  • If you are having an magnetic resonance cholangiopancreatography (MRCP) abdominal exam, do not eat or drink anything six hours prior to your exam.
  • Nervous or claustrophobic patients should ask their primary care physician if a mild sedative should be taken prior to the exam.

Scheduling your magnetic resonance imaging (MRI)

Appointment hours are listed below but could change due to holidays or other circumstances. For more information or to schedule an appointment, call the BJC centralized outpatient scheduling department at 636.916.9320. A physician order is required.

  • Monday to Friday, 7 a.m. to 9 p.m. | Saturday to Sunday, 7:30 a.m. to Noon

Imaging Location

Barnes-Jewish St. Peters Hospital
Entry D
10 Hospital Drive
St. Peters, Missouri 63376

Get directions and maps

For more information or to schedule an appointment, call 636.916.9320.

Hospital Entry D
10 Hospital Drive
St. Peters, Missouri 63376

Campus Map
Find A Doctor or Make An Appointment: 636.928.WELL
General Information: 636.916.9000
BJC HealthCare